lis_vector_axpy(3)

📦 version 2.1.11, in fedora 43, fedora 44, nixos 26.05, nixpkgs unstable

💖 lis_vector_axpy — bestie edition 💖

okay so this is a page from the Lis library functions manual, section 3, and it's about lis_vector_axpy. yes the name is giving "what did my keyboard just do" but stay with me, it's literally so good 🦋

✨ NAME ✨

lis_vector_axpy — calculate the sum of the vectors. that's it, that's the whole vibe. it's a vector math girlie and she's here to add things. 💅

🌸 SYNOPSIS 🌸

#include "lis.h"

LIS_INT lis_vector_axpy(LIS_SCALAR alpha, LIS_VECTOR x, LIS_VECTOR y);

like. look at that signature. LIS_INT coming back at you, one scalar, two vectors, no drama. 🎀

🫶 DESCRIPTION 🫶

okay so what does she actually do? she calculates the sum of the vectors, and the formula is:

y = alpha * x + y

no cap, that's the whole thing. she takes your scalar alpha, multiplies it through vector x, adds your existing y on top, and that's the math. iconic behavior honestly. ✨

🍓 INPUT 🍓

  • alpha — the scalar value. just a number, living its single little life, about to get multiplied across a whole vector. main character energy fr.
  • x, y — the vectors. the actual list-y besties going into the math.

💜 OUTPUT 💜

  • y — this is alpha * x + y, and YES, heads up bestie: vector y is overwritten. not me watching your original y get replaced 😭 she does not save a copy. she does not ask permission. she just writes over it. periodt.
💀 lowkey important: if you were attached to whatever was in y before, that data is gone. plan accordingly.

🌈 EXIT STATUS 🌈

the following exit values are returned:

  • 0 — the process is normally terminated. we love a clean exit. slay. ✨
  • unspecified — an error occurred. no further details given, it's just. vibes off. 🙈

🧚 SEE ALSO 🧚

  • lis(3) — the main character of the whole library, go read her page too 👑

and if you wanna be nosy online: http://www.ssisc.org/lis/ 🌐

okay that's the whole page bestie, you ate that 🫶💖

this was the Man Page for lis_vector_axpy(3), dated 6 Sep 2012 — yeah she's an older icon but she still hits 🔥

byeeee, go add some vectors 💅✨

📦 where this page comes from